接枝羧基淀粉的制备与应用  

The Preparation and Application of Carboxyl-containing Starch

作　　者：周国平[1] 罗士平[1] 孙英[1] 

机构地区：[1]江苏石油化工学院化学工程系,江苏常州213016

出　　处：《江苏石油化工学院学报》2002年第1期13-15,共3页Journal of Jiangsu Institute of Petrochemical Technology

基　　金：江苏石油化工学院科研基金资助

摘　　要：淀粉经环氧氯丙烷交联后 ,以FeSO4 -H2 O2 或 (NH4 ) 2 Ce (NO3) 6 为引发剂 ,将丙烯腈接枝到高交联淀粉上 ,接枝产物再经皂化水解制得水不溶性羧基淀粉接枝聚合物 (简称羧基淀粉 )。研究了在不同的交联和接枝条件下 ,产品对Cr3+ 、Cd2 + 重金属离子的吸附性能 。Water-insoluble carboxyl-containing starch graft polymer (carboxyl-containing starch ) was prepared by crosslinking with epichlorohydrin ,followed by grafting with acrylonitrile ,and base saponification to convert nitrile group into a mixture of carboxyamide and carboxylate groups. FeSO 4-H 2O 2 or (NH 4) 2Ce(NO 3) 6 was used as an initiator for graft polymerization .The sorption properties of carboxyl-containing starch for Cr 3+ and Cd 2+ heavy metal ions have been studied in different crosslinking and grafting conditions. The basis was also provided for its application.

关 键 词：接枝羧基淀粉 制备 应用 交联 接枝 吸附 重金属离子 

分 类 号：TS236.9[轻工技术与工程—粮食、油脂及植物蛋白工程]